Orthobenzylphenol and process of preparing the same



Patented Apr. 6, 1926.

UNITED STATES PATENT OFFICE.

WALTHER KROPP AND WILHELM SCHRANZ, OF ELBERFELD, AND WERNER SCHULE- MANN, OF VOHWINKEL, GERMANY, ASSIGNORS TO FARBENFABRIKEN VORM. FRIEDR. BAYER AND 00., OF LEVERKUSEN, NEAR COLOGNE-ON-THE-RHINE, GER- MANY.

ORTHOIBENZYLPHENOL AND PROCESS OF PREPARING THE SAME.

No Drawing.

To all whom it may concern:

Be it known that we, W'AL'riien Knorr, W'Imncmr ScnnANz, and ruman Sonora:- MANN, citizens of Germany, residing at Elbert'eld (Knorr and ScnnANz) and Vohwinkcl, respect vely, in the State of Prussia, Germany, have invented new and useful In1- provements in Orthobenzylphcnol and Process of Preparing the Same, of which the following is a specification.

()ur invention relates to the manufacture and production of the hitherto unknown ortho-benzylphenol having most probably the following formula:

which crystallizes from benzene in the shape of crystals melting at 52 (1., which are soluble in dilute alkalies forming alkali metal salts and being soluble in alcohol.

Our new product is obtained by firstly treating phenol with henzyl secondly treating the resulting mixture of orthoand para-benzylphenol with a solution of barium hydroxide, thirdly heating this mixture, filtering the cooled liquid and Application filed February 1, 1924.

chloride,

Serial No. 690,078.

finally separating the ortho-benzylphenol from the filtrate by acidulation.

Our new product is a valuable anthelmintic remedy which does not irritate the mucous membranes.

liwamplc.-Sixty-five parts by weight of crystallized barium hydroxide and 250 parts by weight of water are heated to boiling, 50 parts by weight of the product of the reaction of beuzylehloride upon phenol are added and the mixture is boiled during ten minutes. After cooling it is filtered and from the filtrate the ortho-benzylphenol is precipitated with hydrochloric acid.

\Ve claim:

The herein described process for producing ortho-benzylphenol, which process consists in firstly treating phenol with benzylhalide, secondly treating the resulting mixture comprising ortho and para-benzylphenol with a solution of barium hydroxide, thirdly heating this mixture, filtering the cooled liquid and finally separating the ortho-beuzylphenol from the filtrate by aeidulation, substantially as described.

In testimony whereof we have hereunto set our hands.

\VALTHER KROPP. \VIL'HELM SCHRANZ. \VERNER SCHULEMANN.

Patented Apr. 6, 1926.

UNITED STATES PATENT OFFICE.

WALTHER KROPP AND WILHELM SGHRANZ, F ELBEBFELD, AND WERNER SG'EULE- MANN, 0F VOHWINKEL, GERMANY, ASSIGNORS TO FARBENFAIBBIKEN VODK- FRIEDR, BAYER AND 00., OF LEVERKUSEN, NEAR GOLOGNE-ON-THE-BHINE, GER- MANY.

ORTHOBENZYLPHENOL AND PROCESS OF PREPARING THE SAME.

No Drawing.

/CHI CQH| which crystallizes from benzene in the shape of crystals melting at 52 (1., which are soluble in dilute alltalies forming alkali metal salts and being soluble in alcohol.

Our new product is obtained by firstly treating phenol with benzyl secondly treating the resulting mixture of orthoand para-benzylphenol with a solution of barium hydroxide, thirdly heating this mixture, filtering the cooled liquid and chloride,

Application filed February 1, 1924. Serial No. 690,078.

finally separating the ortho-benzylphenol from the filtrate by acidulation.

Our new product is a valuable anthelmintic remedy which does not irritate the mucous membranes.

I::m11iple.Sixty-five parts by weight of crystallized barium hydroxide and 250 parts by weight of water are heated to boiling, 50 parts by weight of the product of the reaction of benzylchloride upon phenol are added and the mixture is boiled during ten minutes. After cooling it is filtered and from the filtrate the ortho-bcnzyl henol is precipitated with hydrochloric aci \Ve claim The herein described process for producing ortho-benzylphenol, which process consists in firstly treatin phenol with benzylhalide, secondly treating the resulting mlxtnre comprising ortho and para-benzylphenol with a solution of barium hydroxide, thirdly heating this mixture, filtering the cooled liquid and finally separating the ortlio-benzylphcnol from the filtrate by acid ulation, substantially as describedv In testimony whereof we have hereunto set our hands.

\VALTHER. KROPP. \VILHELM SCHRANZ. \VERNER SCHULEMANN.

Certificate of Correction. It is hereby certified that Letters Patent No. 1580053, granted April 6, 1926,

upon the application of \Valter Kropp and W Werner Schulemann, of Vohwinkel, Germany. for an improvement in Farbenfabriken vorm. F Rhine. Germany,

(literati/a1 Company, Inn. of New York. Y I v bv mam/i nsmynmcnfa. of the entire interest 111 said ls of assignments in this office: and that the said corporation being assignee, invention as shown by the rccort benzylphonol and Processes of Preparing the Same. h

riedr. Bayer and (0.. of Leverkusen. near ologne-on-t e whereas said Letters Patent shouldhave issued to llz'nthrop ilhelm Schranz, of Elberfeld and Orthowere erroneously issued to a (orpomtion of New York, said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Otiice.

Signed and sealed this 29th day of June, A. D. 1926.

[seen] M. J. MOORE, Acting Commissioner of Patents.

Certificate of Correction.

It is hereby certified that 'Letters Patent No. 1,580,053, granted April (3, 1926, upon the application of \Valter Krnpp and \Viihehn Sehranz, of Elherteld, and VVQI'IIBI Schnlemann, of Vohwinkel, Germany. for an improvement in Orthobenzylphonol and Prm'e-sses of Preparing the Same, wereerroneonsly issued to Farbenfahriken vm'ni. Friedr. Bayer and (o.. of Leverknsen. near (ologrne-onthe Rhine. Germany? whereas: snhl Letters Patent shonldhave issued to Winthrop ('ha'miral Oompnnu, 111m. of .i'r-u' York. N. Y., n (animation of ,Vr-u- York. said corporation being as ignee, by mesnr'l lmsiy wnmnfs. of the entire interest in said invention, as shown by the I'N'UItiS of assignments in this ofiiee: and that the said Letters Patent should he read with this em'l-ection therein that, the same may conform to the, record of the case. in the Patent Office.

Signed and sealed this 29th day of June, A. D. 1926.

[snub] M. J. MOORE,

Acting Commissioner of Patents. 

